Halloween events in O Fallon

Name: Tosstoberfest 2025 Presented by Mercy
Start: 2025-10-11
Location: 107 Sheriff Dierker Ct, O'Fallon, MO 63366-2468, United States

Check out happening halloween events all around O Fallon, MO

Sun, 19 Oct at 10:00 am O'Fallon Elks Lodge

Sat, 11 Oct at 10:00 am 306 Sonderen Street , O'Fallon, MO, United States, Missouri 63366

Fri, 24 Oct at 06:00 pm 1 Club Way Dr, St Peters, MO 63376-8000, United States

Sun, 19 Oct at 10:00 am O'Fallon Elks Lodge Free

Sat, 25 Oct at 05:00 pm 1 Club Way Dr, St Peters, MO 63376-8000, United States

Sat, 04 Oct at 02:00 pm 403 N Main St, O'Fallon, MO, United States, Missouri 63366

Sat, 11 Oct at 11:30 am 107 Sheriff Dierker Ct, O'Fallon, MO 63366-2468, United States